请好心英语爱好者给出答案并给与语法知识点解释. 1、I`d just as soon__those important papers with you. A.that you won`t take B.your not taking C.please don`t you take D.you didn`t take 2、They have done things that they ought__ A.not to do B.not to be done C.not to have done D.not having done 3、I__a little earlier ,but I met a friend of mine on the way. A.should arrive B.would be arriving C.could have arrived D.arrived 4、Substances will expand or contract__heated or colder,but this is not the case with water. A.when they will be B.if they will be C.as they being D.when